How to set up Coupler?

Is there a certain amount of endplay to have in the coupler?

Mine is a glide to a 9", and as I look at it I tend to think there should be some play to allow things to move around as the frame changes during a run.

Thanks for any input.

-Brian

 

with the car on the ground, you need to be able to reach in and slide the coupler back and forth freely. this is very important and needs to be right. i set my collars to let the coupler slide a little over 1/8". hope this helps
Darren

 

According to Bob "I'm just a welder" Meyer the T handle in your hand to tighten the lock ring is the right size. 3/16"

 

i have always had 1/8" play in the shaft so after you tighten down the collars slide the shaft back and forth 1/8" min.

 

I always set mine at about an 1/8th inch , if it needs more ....it will take it on its own !

 

Thanks guys. When I went to the track I didn't have time to ask, so I just did what seemed right and gave it a fat 1/8. Glad I got it right. You guys are the best.

-Brian

 

Brian, I made the mistake of one day of not having any play in it and on the launch in a blown bbc rear motor car it spit the the ring and pinion and the case out on the ground. I knew rite away what I did but to late to worry about after the fact. They have to have some play as the chassis moves around a lot and something has to give. Jeff

 

clearance

Start with a good 1/8 in. After the run check it. It will find its own clearance. Then write that down and set it up from there. Don

 

1/8th here to Scott